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利用 ICP- MS法 ,对小麦粉标物 GBW0 850 3中 La、Sm和 Y进行均匀性检验。采用 t检验法和 F检验法的联合技术统计处理数据 ,检验结果表明 ,瓶内和瓶间的均值与方差不存在显著性差异 ,证明样品均匀。
The uniformity of La, Sm and Y in wheat flour GBW0 850 3 was tested by ICP-MS. The data of t-test and F-test were used to process the data. The test results showed that there was no significant difference between the mean and variance of the bottle and the bottle, which proves that the sample is even.